augur vs prefigure

augur is a noun but prefigure is not a noun.

Word	Noun	Adjective	Verb	Adverb
augur	Yes	No	Yes	No
prefigure	No	No	Yes	No

As verbs, augur and prefigure are synonyms defined as:

augur (noun)	prefigure (noun)
(ancient Rome) a religious official who interpreted omens to guide public policy

augur (verb)	prefigure (verb)
indicate, as with a sign or an omen	indicate, as with a sign or an omen
predict from an omen	imagine or consider beforehand